Question

Find the radius of the circle containing 18

degree arc of a circle whose length is 15 Pi meters

Answer 1

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Answer:

150 m

Explanation:

The relationship between arc length (s), radius (r), and central angle (θ) is ...

s = rθ

Dividing by θ gives the formula for r:

r = s/θ = (15π m)/(18°(π/180°))

r = 150 m . . . . the radius of the circle